CN105352066B - A kind of heat recovery fresh air unit and its control method suitable for independent temperature-humidity control system - Google Patents
A kind of heat recovery fresh air unit and its control method suitable for independent temperature-humidity control system Download PDFInfo
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- CN105352066B CN105352066B CN201510638089.9A CN201510638089A CN105352066B CN 105352066 B CN105352066 B CN 105352066B CN 201510638089 A CN201510638089 A CN 201510638089A CN 105352066 B CN105352066 B CN 105352066B
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- 238000000034 method Methods 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 238000011084 recovery Methods 0.000 claims abstract description 34
- 239000002274 desiccant Substances 0.000 claims abstract description 31
- 238000012423 maintenance Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 17
- 238000004378 air conditioning Methods 0.000 claims description 15
- 238000007791 dehumidification Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 9
- 238000011282 treatment Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/147—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
Abstract
The present invention relates to a kind of heat recovery fresh air unit and its control method suitable for independent temperature-humidity control system, belong to heating and ventilating equipment technical field.The heat recovery fresh air group is mainly made of exhaust blower, pressure fan, primary filter, heat regenerator, humidifier, desiccant cooling system and self-con-tained unit etc..In different seasons, heat recovery fresh air unit can be controlled to be operated in three kinds of different operating modes.A kind of heat recovery fresh air unit and its control method suitable for independent temperature-humidity control system provided by the invention, can realize the dual energy saving of air-to-air energy recovery technology and independent temperature-humidity control system, at the same have the characteristics that integrated degree is high, management is convenient, occupied space saves, with circuits are simple, engineering adaptability is strong.
Description
Technical field
The invention belongs to heating and ventilating equipment technical field, and it is new to be related to a kind of recuperation of heat suitable for independent temperature-humidity control system
Blower fan group and its control method.
Background technology
Energy-saving and emission-reduction to be taken seriously dynamics increasing, the government work report in 2015 has swung to energy-saving and emission-reduction very heavy
The position wanted, is emphasized " to accomplish fluently energy-saving and emission-reduction and environmental improvement assault of fortified positions ".As the important component of energy-saving and emission-reduction, building
It is energy saving also to receive much attention always.The energy expenditure of heating ventilation air-conditioning system typically constitutes from 30%-the 50% of whole building total energy consumption,
The power-saving technology of exploration heating ventilation air-conditioning system is simultaneously obvious as the important breakthrough mouth meaning for realizing building energy conservation.
The energy consumption link of heating ventilation air-conditioning system is more, its influence factor is also more, and for many years, tradesman is always from different rings
Section, different levels angle explore various measures to effectively increase energy savings and reduce material consumption, and achieve certain achievement in research, as architectural exterior-protecting construction is protected
Warm, suitable fresh air volume value, ground-source heat pump system, water-loop heat pump system, independent temperature-humidity control system, good waterpower are put down
Weighing apparatus measure etc..
The angle of independent temperature-humidity control system from optimization air handling scheme is started with, to use the low-temperature receiver of most suitable grade
Processing to air is completed, so as to achieve the purpose that energy saving and air quality higher.The essence of independent temperature-humidity control system is
The control respectively of temperature, humidity is realized by the processing respectively to fresh air, return air, Xingfeng capsule humidity is handled, handles return air control
Temperature processed, avoids heat loss again,
Its significant energy-saving effect, to humiture accurately control ability, carries indoor air quality and sanitary condition
The ability of liter, is approved by industry personnel.
Independent temperature-humidity control system has been suggested for many years, there is certain case history at present, but seldom, this and humiture
Autonomous control system self-characteristic and there is substantial connection to the degree that it is studied.Currently, dehumidifying and falling temperature technique are more ripe, but
On that will dehumidify and cooling organically combines and still less with the research that flexible form is applied, independent temperature-humidity control system at present
For application form mainly based on solution dehumidification+high temperature cold source cool-down, application form is single, this is also independent temperature-humidity control system
One of the main reason for being not yet promoted, therefore necessary for further study to independent temperature-humidity control system, innovation
Its application form.
Air-to-air energy recovery technology is one kind in heat recovery technology, its energy-saving effect already known to tradesman, and
It is written into《Public building energy design standard》With in the energy saving igniter of each place.Air-to-air energy recovery technology have it is a variety of,
Such as rotary-type heat reclamation device, board-like and plate-fin heat reclamation device, heat pipe-type heat reclamation device, liquid circulated recuperation of heat dress
Put, solution absorbed heat reclamation device.At present, the main solution application absorption type heat recycling dress in independent temperature-humidity control system
Put, the heat reclamation device of other forms is there is not yet using based on this present situation, it is necessary to explores other heat reclamation devices and humiture
The application form that autonomous control system effectively combines.
The content of the invention
In view of this, it is an object of the invention to provide a kind of heat recovery fresh air suitable for independent temperature-humidity control system
Unit and its control method, can realize the dual energy saving of air-to-air energy recovery technology and independent temperature-humidity control system, have at the same time
There is integrated degree is high, manages convenient, occupied space to save, with the features such as circuits are simple, engineering adaptability is strong.
An object of the present invention is to provide a kind of heat recovery fresh air unit suitable for independent temperature-humidity control system, leads to
Cross following technical scheme realization.
A kind of heat recovery fresh air unit suitable for independent temperature-humidity control system, including fresh air channel, air exhaust passage；
The fresh air channel include fresh air inlet, primary filter I, heat regenerator, precool heat exchanger device, maintenance dead band, remove
Wet refrigeration system, humidifier, pressure fan, air outlet；
Fresh air inlet is connected with the input terminal of primary filter I, the output terminal of primary filter I and the first of heat regenerator
Input terminal connects, and fresh air enters from fresh air inlet, filtration treatment is carried out through primary filter I, subsequently into heat regenerator and row
Wind carries out hot and humid area；First output terminal of heat regenerator is connected with the input terminal of precool heat exchanger device, the output of precool heat exchanger device
End is connected with maintenance dead band, and maintenance dead band is connected with the input terminal of desiccant cooling system, and the desiccant cooling system is used for new
Wind carries out depth dehumidification treatments, and the output terminal of the output terminal of desiccant cooling system and humidifier connects, and the humidifier is used for pair
Fresh air carries out humidification process, and the output terminal of humidifier and the input terminal of pressure fan connect, and output terminal and the air outlet of pressure fan connect
Connect；
The air exhaust passage includes air draft entrance, primary filter II, exhaust blower, the first air-valve, the first exhaust outlet, heat and returns
Receive device, the second exhaust outlet；
Air draft entrance is connected with the input terminal of primary filter II, the input of the output terminal and exhaust blower of primary filter II
End connection, the output terminal of exhaust blower are connected with the first exhaust outlet and the first air-valve respectively, and first exhaust outlet carries air-valve；The
Second input terminal of one air-valve and heat regenerator connects, and the second output terminal of heat regenerator is connected with the second exhaust outlet, air draft into
Enter heat regenerator with being discharged after fresh air progress hot and humid area from the second exhaust outlet.
Further, the desiccant cooling system includes compressor, condenser, electric expansion valve, evaporator, the evaporator
Between the maintenance dead band and humidifier of fresh air channel, for dehumidifying to fresh air.
Further, during summer condition, heat recovery fresh air unit realizes refrigerating function, and the precool heat exchanger device is used for fresh air
Freeze, the evaporator of desiccant cooling system is used to carry out depth dehumidification treatments to fresh air.
Further, during winter condition, heat recovery fresh air unit realizes heat-production functions, and the precool heat exchanger device is used for fresh air
Heated, humidifier is used to carry out humidification process to fresh air.
The second object of the present invention is to provide a kind of heat recovery fresh air unit suitable for independent temperature-humidity control system
Control method, is achieved through the following technical solutions.
The control method of a kind of heat recovery fresh air unit suitable for independent temperature-humidity control system, described in claim 2
The control method of heat recovery fresh air unit suitable for independent temperature-humidity control system a kind of include the controlling party of summer condition
Method, the control method of winter condition, the control method of transition season；
The control method of the summer condition is to close the first exhaust outlet to carry air-valve, opens the first air-valve, desiccant cooling
System is in working condition, and closes humidifier；
The control method of the winter condition is to close the first exhaust outlet to carry air-valve, opens the first air-valve, closes dehumidifying
Refrigeration system, opens humidifier；
The control method of the transition season is to open an exhaust outlet to carry air-valve, closes the first air-valve.
Further, during summer condition, precool heat exchanger device connects high temperature chilled water with the condenser in desiccant cooling system；
Outdoor fresh air carries out hot and humid area after the filtering of primary filter I, into heat regenerator and air draft, is changed by precooling
Hot device carries out pre- reducing temperature and humidity processing, then passes through maintenance dead band, then remove by the evaporator progress depth of desiccant cooling system
Wet process, is finally pressurizeed by pressure fan, is sent into by air outlet in air-conditioned room；
The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower,
By the first air-valve, into heat regenerator, hot and humid area is carried out with fresh air, is then discharged from the second exhaust outlet.
Further, liquid refrigerant is contained in the evaporator, after liquid refrigerant carries out cool-down dehumidification to fresh air, heat absorption
Switch to gaseous state, pressurization be compressed into compressor, enter back into condenser and carry out condensation heat release, then flow through electric expansion valve into
Row cooling, circulation flow to evaporator and continue to absorb heat, and continue to carry out cool-down dehumidification processing to fresh air.
Further, during winter condition, precool heat exchanger device connects air conditioning hot；
Outdoor fresh air, into heat regenerator, carries out hot and humid area with air draft, passes through precooling after the filtering of primary filter I
Heat exchanger is heated, and then by maintenance dead band, then by humidifier progress humidification process, is finally added by pressure fan
Pressure, is sent into air-conditioned room by air outlet；
The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower,
By the first air-valve, into heat regenerator, hot and humid area is carried out with fresh air, is then discharged from the second exhaust outlet.
Further, during excessive season, the air of indoor room extraction, is filtered by air draft entrance through primary filter II
Afterwards, pressurizeed by exhaust blower, open the air-valve on the first exhaust outlet, close the first air-valve, air draft is directly by the first exhaust outlet
Discharge.
The beneficial effects of the present invention are：A kind of recuperation of heat suitable for independent temperature-humidity control system that this hair provides is new
Blower fan group and its control method, by the Fresh air handing technology of air-to-air energy recovery technology and independent temperature-humidity control system into organic
With reference to so that change unit has the dual energy-saving effect of air-to-air energy recovery technology and independent temperature-humidity control system, fresh air at the same time
With air draft between heat regenerator is entered, primarily efficient filter processing is carried out, ensure that cleaning and the heat transfer effect of heat regenerator.
By the air-valve being switched off inside air-conditioning box, realize the bypass air-exhausting function of transition season, farthest utilize fresh air
Cold.Main member is sequentially placed in same air-conditioning box along air handling scheme, and the evaporator of desiccant cooling system is placed in newly
In the dehumidification function section of wind process flow, compressor, condenser, electric expansion valve are placed in the upper strata dead band of air-conditioning box, system
Compact, integrated degree is high, and floor space is small, and management is convenient.
Brief description of the drawings
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
The detailed description of one step, wherein：
Fig. 1 is the structure diagram of heat recovery fresh air unit of the present invention；
Wherein, 1 is that fresh air inlet 1,2 is that primary filter I, 3 is heat regenerator, 4 is precool heat exchanger device, 5 is that maintenance is empty
Section, 6 be evaporator, 7 be humidifier, 8 be pressure fan, 9 be air outlet, 10 be air draft entrance, 11 be that primary filter II, 12 is
Exhaust blower, 13 be the first air-valve, 14 be the first exhaust outlet (band air-valve), 15 be the second exhaust outlet, 16 be compressor, 17 be condensation
Device, 18 be electric expansion valve, 19 be air-conditioning box, 20 be self-con-tained unit, 21 be signal transmssion line.
Embodiment
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
A kind of heat recovery fresh air unit suitable for independent temperature-humidity control system provided by the invention, as shown in Figure 1, main
Component is wanted to include fresh air inlet 1, primary filter I 2, heat regenerator 3, precool heat exchanger device 4, maintenance dead band 5, evaporator 6, humidification
Device 7, pressure fan 8, air outlet 9, air draft entrance 10, primary filter II 11, exhaust blower 12, the first air-valve 13, the first exhaust outlet
(band air-valve) 14, second exhaust outlet 15, compressor 16, condenser 17, electric expansion valve 18, air-conditioning box 19, self-con-tained unit 20, letter
Number transmission line 21, is sequentially placed in air-conditioning box by air handling scheme, forms fresh air channel, air exhaust passage.
Air-conditioning box is locally divided into two layers up and down, and display screen and the controller of self-con-tained unit are placed in outside air-conditioning box, whole system
Equipment has high Temperature and Humidity Control precision, air quality height, energy-saving effect is notable, integrated degree is high, management is convenient, occupancy is empty
Between save, with the characteristics of circuits are simple, engineering adaptability is strong.
Fresh air channel include fresh air inlet 1, primary filter I 2, heat regenerator 3, precool heat exchanger device 4, maintenance dead band 5, remove
Wet refrigeration system, humidifier 7, pressure fan 8, air outlet 9；Desiccant cooling system includes compressor 16, condenser 17, electronic expansion
Valve 18, evaporator 6；Evaporator is stated between the maintenance dead band of fresh air channel and humidifier, for dehumidifying to fresh air,
Compressor, condenser, electric expansion valve are placed in the upper strata dead band of air-conditioning box.
Fresh air inlet is connected with the input terminal of primary filter I, the output terminal of primary filter I and the first of heat regenerator
Input terminal connects, and fresh air enters from fresh air inlet, filtration treatment is carried out through primary filter I, subsequently into heat regenerator and row
Wind carries out hot and humid area；First output terminal of heat regenerator is connected with the input terminal of precool heat exchanger device, the output of precool heat exchanger device
End is connected with maintenance dead band, and maintenance dead band is connected with the input terminal of desiccant cooling system, and desiccant cooling system is used for summer condition
When carry out depth dehumidification treatments to fresh air, the output terminal of the output terminal of desiccant cooling system and humidifier connects, and humidifier is used for
Humidification process is carried out during winter condition to fresh air, the output terminal of humidifier and the input terminal of pressure fan connect, the output of pressure fan
End is connected with air outlet；
Air exhaust passage includes air draft entrance 10, primary filter II 11, exhaust blower 12, the first air-valve 13, the first exhaust outlet
14th, heat regenerator 3, the second exhaust outlet 15；
Air draft entrance is connected with the input terminal of primary filter II, the input of the output terminal and exhaust blower of primary filter II
End connection, the output terminal of exhaust blower are connected with the first exhaust outlet and the first air-valve respectively, and the first exhaust outlet carries air-valve；First wind
Second input terminal of valve and heat regenerator connects, and the second output terminal of heat regenerator is connected with the second exhaust outlet, and air draft enters heat
Recover after fresh air progress hot and humid area from the second exhaust outlet with discharging.
A kind of control method of heat recovery fresh air unit suitable for independent temperature-humidity control system includes summer condition
Control method, the control method of winter condition, the control method of transition season.
The control method of summer condition is to close the first exhaust outlet to carry air-valve, opens the first air-valve, desiccant cooling system
It is in working condition, closes humidifier.
Heat recovery fresh air unit realizes refrigerating function, and precool heat exchanger device is used to freeze to fresh air, desiccant cooling system
Evaporator be used for fresh air carry out depth dehumidification treatments.The condenser of precool heat exchanger device and desiccant cooling system connects and dry pan
Manage the high temperature chilled water (14-20 DEG C) of identical (control indoor air temperature in air conditioned building), the electric control valve in precool heat exchanger device water lines
In maximum opening state, electric work on-off valve is set on the condenser water pipe of desiccant cooling system and is in opening, by high temperature
The cooling capacity of chilled water, which drains, to be used up, and lowers the input amount of desiccant cooling system, improves the efficiency of desiccant cooling system.
Electric control valve is not set in water lines and sets electronic on-off valve reduction water lines resistance so that the property of refrigeration system
It can significantly improve, and machine assembles that circuits are succinct, and engineering adaptability is strong.
Outdoor fresh air carries out hot and humid area after the filtering of primary filter I, into heat regenerator and air draft, is changed by precooling
Hot device carries out pre- reducing temperature and humidity processing, then passes through maintenance dead band, then remove by the evaporator progress depth of desiccant cooling system
Wet process, is finally pressurizeed by pressure fan, is sent into by air outlet in air-conditioned room.
Containing liquid refrigerant in evaporator, after liquid refrigerant carries out cool-down dehumidification to fresh air, heat absorption switchs to gaseous state, into
Enter compressor and be compressed pressurization, enter back into condenser and carry out condensation heat release, then flow through electric expansion valve and cool down, circulate
It flow to evaporator to continue to absorb heat, continues to carry out cool-down dehumidification processing to fresh air.
The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower,
By the first air-valve, into heat regenerator, hot and humid area is carried out with fresh air, is then discharged from the second exhaust outlet.
The control method of winter condition is to close the first exhaust outlet to carry air-valve, opens the first air-valve, closes desiccant cooling
System, opens humidifier.
Heat recovery fresh air unit realizes heat-production functions, and the precool heat exchanger device is used to heat fresh air, precooling
Heat exchanger connects air conditioning hot, and humidifier is used to carry out humidification process to fresh air.
Outdoor fresh air, into heat regenerator, carries out hot and humid area with air draft, passes through precooling after the filtering of primary filter I
Heat exchanger is heated, and then by maintenance dead band, then (desiccant cooling system stops by humidifier progress humidification process
Operation), finally pressurizeed by pressure fan, be sent into by air outlet in air-conditioned room；
The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower,
By the first air-valve, into heat regenerator, hot and humid area is carried out with fresh air, is then discharged from the second exhaust outlet.
The control method of transition season is to open an exhaust outlet to carry air-valve, closes the first air-valve.
The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower,
The air-valve on the first exhaust outlet is opened, closes the first air-valve, air draft is directly discharged by the first exhaust outlet, does not enter heat regenerator.
Heat recovery fresh air group of the present invention is included by a set of self-con-tained unit 20, passes through signal transmssion line 21 and each sensing
Device, actuator are connected, and summer requires adjustment electric expansion valve according to Fresh air handing humidity, and winter requires according to Fresh air handing humidity
Adjust humidifier humidifies amount；Self-con-tained unit 20, can switch according to operating mode and require, open and close automatically corresponding air-valve；Automatic control fills
20 are put, while is completed warm and humid to the aerial temperature and humidity after precool heat exchanger device 4 and evaporator 6 (or humidifier 7) processing, outdoor fresh air
The monitoring of degree.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
- A kind of 1. heat recovery fresh air unit suitable for independent temperature-humidity control system, it is characterised in that：Including fresh air channel, row Wind passage；The fresh air channel includes fresh air inlet, primary filter I, heat regenerator, precool heat exchanger device, maintenance dead band, dehumidifying system Cooling system, humidifier, pressure fan, air outlet, the desiccant cooling system include compressor, condenser, electric expansion valve, evaporation Device, the evaporator is installed between maintenance dead band and the humidifier of fresh air channel, for dehumidifying to fresh air；Fresh air inlet is connected with the input terminal of primary filter I, the first input of the output terminal and heat regenerator of primary filter I End connection, fresh air enter from fresh air inlet, and filtration treatment is carried out through primary filter I, subsequently into heat regenerator and air draft into Row hot and humid area；First output terminal of heat regenerator is connected with the input terminal of precool heat exchanger device, the output terminal of precool heat exchanger device with Overhaul dead band connection, maintenance dead band be connected with the input terminal of desiccant cooling system, the desiccant cooling system for fresh air into Row depth dehumidification treatments, the output terminal of desiccant cooling system and the output terminal of humidifier connect, and the humidifier is used for fresh air Humidification process is carried out, the output terminal of humidifier and the input terminal of pressure fan connect, and the output terminal of pressure fan is connected with air outlet；During summer condition, heat recovery fresh air unit realizes refrigerating function, and the precool heat exchanger device is used to freeze to fresh air, removes The evaporator of wet refrigeration system is used to carry out depth dehumidification treatments to fresh air；During winter condition, heat recovery fresh air unit realizes system Hot function, the precool heat exchanger device are used to heat fresh air, and humidifier is used to carry out humidification process to fresh air；The air exhaust passage includes air draft entrance, primary filter II, exhaust blower, the first air-valve, the first exhaust outlet, recuperation of heat Device, the second exhaust outlet；Air draft entrance is connected with the input terminal of primary filter II, and the output terminal of primary filter II and the input terminal of exhaust blower connect Connect, the output terminal of exhaust blower is connected with the first exhaust outlet and the first air-valve respectively, and first exhaust outlet carries air-valve；First wind Second input terminal of valve and heat regenerator connects, and the second output terminal of heat regenerator is connected with the second exhaust outlet, and air draft enters heat Recover after fresh air progress hot and humid area from the second exhaust outlet with discharging.
- A kind of 2. control for being used for the heat recovery fresh air unit suitable for independent temperature-humidity control system as claimed in claim 1 Method, it is characterised in that：Control method including summer condition, the control method of winter condition, the control method of transition season；The control method of the summer condition is to close the first exhaust outlet to carry air-valve, opens the first air-valve, desiccant cooling system It is in working condition, closes humidifier；The control method of the winter condition is to close the first exhaust outlet to carry air-valve, opens the first air-valve, closes desiccant cooling System, opens humidifier；The control method of the transition season is to open the first exhaust outlet to carry air-valve, closes the first air-valve.
- A kind of 3. controlling party of heat recovery fresh air unit suitable for independent temperature-humidity control system according to claim 2 Method, it is characterised in that：During summer condition, precool heat exchanger device connects high temperature chilled water with the condenser in desiccant cooling system；Outdoor fresh air carries out hot and humid area after the filtering of primary filter I, into heat regenerator and air draft, passes through precool heat exchanger device Pre- reducing temperature and humidity processing is carried out, then by maintenance dead band, then at the evaporator progress depth dehumidifying for passing through desiccant cooling system Reason, is finally pressurizeed by pressure fan, is sent into by air outlet in air-conditioned room；The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower, passed through First air-valve, into heat regenerator, carries out hot and humid area with fresh air, is then discharged from the second exhaust outlet.
- A kind of 4. controlling party of heat recovery fresh air unit suitable for independent temperature-humidity control system according to claim 3 Method, it is characterised in that：Contain liquid refrigerant in the evaporator, after liquid refrigerant carries out cool-down dehumidification to fresh air, heat absorption Switch to gaseous state, pressurization be compressed into compressor, enter back into condenser and carry out condensation heat release, then flow through electric expansion valve into Row cooling, circulation flow to evaporator and continue to absorb heat, and continue to carry out cool-down dehumidification processing to fresh air.
- A kind of 5. controlling party of heat recovery fresh air unit suitable for independent temperature-humidity control system according to claim 2 Method, it is characterised in that：During winter condition, precool heat exchanger device connects air conditioning hot；Outdoor fresh air, into heat regenerator, carries out hot and humid area with air draft, passes through precool heat exchanger after the filtering of primary filter I Device is heated, and then by maintenance dead band, then by humidifier progress humidification process, is finally pressurizeed, led to by pressure fan Air outlet is crossed to be sent into air-conditioned room；The air of indoor room extraction, by air draft entrance after the filtering of primary filter II, is pressurizeed by exhaust blower, passed through First air-valve, into heat regenerator, carries out hot and humid area with fresh air, is then discharged from the second exhaust outlet.
- A kind of 6. controlling party of heat recovery fresh air unit suitable for independent temperature-humidity control system according to claim 2 Method, it is characterised in that：During excessive season, the air of indoor room extraction, by air draft entrance after the filtering of primary filter II, Pressurizeed by exhaust blower, open the air-valve on the first exhaust outlet, close the first air-valve, air draft is directly arranged by the first exhaust outlet Go out.
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| CN106500284A (en) * | 2016-11-25 | 2017-03-15 | 广东申菱环境系统股份有限公司 | A kind of all-fresh air energy-recovering air-conditioner group and its control method |
| US11293655B2 (en) * | 2017-07-05 | 2022-04-05 | Mitsubishi Electric Corporation | Air-conditioning apparatus and air-conditioning system |
| CN107869928A (en) * | 2017-12-12 | 2018-04-03 | 陈祖卫 | Air heat exchanger and its refrigerating plant |
| CN108870574A (en) * | 2018-07-19 | 2018-11-23 | 江苏中科睿赛污染控制工程有限公司 | A kind of aeration device |
| CN108800342A (en) * | 2018-07-23 | 2018-11-13 | 广州同方瑞风节能科技股份有限公司 | An integrated horizontal air conditioning unit |
| CN110864395A (en) * | 2019-11-28 | 2020-03-06 | 成都申科工业设备安装有限公司 | No reheat new trend system |
| CN111050529A (en) * | 2019-12-05 | 2020-04-21 | 江苏致远高科能源科技有限公司 | Energy-saving fresh air handling unit of data center and working method thereof |
| CN112329098B (en) * | 2020-10-26 | 2023-02-24 | 同济大学 | High-performance residential building fresh air volume design method |
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